Specifications

Other Features 4-7
Last Call
Last-dialed number ATI4 — Last Dialed #
Disconnect reason ATI6 — Disconnect Reason is
Speed ATI6 — Speed
Duration ATI6 — Last Call
Modulation ATI11 — Modulation
Error control protocol ATI6 — Protocol
Compression type ATI6 — Compression
MI/MIC Operations
Couriers are shipped with MI/MIC disabled, that is, for normal
use. Mode Indicate/Mode Indicate Common (MI/MIC) closure
is required for some applications where existing hardware, such
as a PBX, does the dialing.
For these applications, the Courier must power up in Originate
mode. Then the Courier goes on line and accepts data when it
connects with the number dialed by the system equipment.
Once you've set Register S34, have the system force the modem
off hook by closing the MI/MIC leads in the phone line
connector.
Setting the MI/MIC Jumpers
1
Send ATS34.5=1&W <Enter>.
2
Power off the Courier and disconnect all of its cables.
3
Turn the Courier upside down. Remove the two square
vinyl feet and put them aside.
4
Remove the two Phillips screws located in the wells beneath
the vinyl feet.
5
Pry off the plastic volume slide-switch cover.
6
Raise the back end of the case bottom and lift it away.